Activated sludge multiplication method

A technology of activated sludge and sludge, which is applied in chemical instruments and methods, water/sludge/sewage treatment, water pollutants, etc. problems, to achieve good sedimentation performance, good biological activity, and reduce the cost of transformation

Inactive Publication Date: 2020-04-10
上海亿维工程技术有限公司
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  • Abstract
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Problems solved by technology

However, the above methods require sufficient manpower, material resources, financial resources and new technology support. Compared with large-scale sewage treatment plants, small and medium-sized sewage treatment plants have many problems such as low technical level, insufficient technical personnel, and tight funds. In particular, insufficient funds directly limit medium-sized sewage treatment plants. Normal operation of small sewage plants

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  • Activated sludge multiplication method

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Embodiment Construction

[0011] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0012] In conjunction with the accompanying drawings, a method for doubling activated sludge comprises the following steps: cultivating granular sludge, screening granular sludge, and returning underflow granular sludge, specifically as follows:

[0013] (1) Cultivation of granular sludge: In the water treatment system, microorganisms and biological carriers or themselves are contacted and adsorbed to form initial granular sludge. The microorganisms in the initial granular sludge continue to grow...

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Abstract

The invention discloses an activated sludge multiplication method which comprises the following steps: culturing granular sludge, screening the granular sludge and refluxing underflow granular sludge.The method has the beneficial effects that the screened granular sludge is refluxed, and the amount of sludge needing to be treated subsequently is reduced; the functions of simultaneously degradingorganic matters and removing nitrogen and phosphorus are realized, and the effluent quality is integrally improved; transformation is conducted on an existing pipeline, and the transformation cost isreduced; and the mode is simple and easy to operate, and the energy consumption and operation cost are reduced.

Description

technical field [0001] The invention relates to the technical field of industrial wastewater treatment, in particular to an activated sludge doubling method. Background technique [0002] The survey shows that by the second quarter of 2015, the daily sewage treatment capacity of the urban sewage treatment plants put into operation in my country will reach about 161 million cubic meters, and the annual power consumption will exceed 11 billion kwh, accounting for about half or even more of the operating cost of sewage treatment facilities. The proportion of electricity consumption in the operating costs of small and medium-sized sewage treatment plants in my country is relatively large. In recent years, extensive research has been carried out at home and abroad to reduce the energy consumption of sewage plants. At present, technological upgrading, optimization of process parameters, replacement of energy-saving equipment, staggered operation, and improvement of the operating le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F101/16C02F101/30
CPCC02F3/302C02F3/308C02F2101/105C02F2101/16C02F2101/30
Inventor 吴峰
Owner 上海亿维工程技术有限公司
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